Defocussed photometry with the Danish 1.5m telescope at ESO La Silla

 

 

  Quick links:   Transits to observe
  Targets for the 2026 season
  Completed targets
  Finder charts
  Observing instructions
  Pointing limits
  Eclipses observed for eclipsing binaries:   WASP-24 EB,   NGTS 0522,   SDSS-MEB-1
  Past transits:   2026,   2025 (Luigi),   2025,   2024,   2023,   2022,   2021,   2019,   2018,   TRAPPIST-1,   2017,   2016,   2015,   2014,   2013,   2012,   2011,   2010,   2009,   2008
  Presentations
  Publications

 

Introduction

The MiNDSTEp campaign is using the Danish 1.5m telescope at ESO La Silla to monitor microlensing events in the direction of the Galactic bulge. One of the additional projects of this campaign is to obtain high-precision light curves of transiting extrasolar planetary systems. Our approach is to defocus the telescope and spread the PSF over roughly 100-1000 pixels, allowing us to achieve extremely low random and systematic noise levels. The transit light curves are analysed to measure the mass, radius and other physical properties of the planet and its host star. The organiser of this project is John Southworth. For more information please see the MiNDSTEp homepage and new wiki page from Jesper.

We are now into the 2025 MiNDSTEp observing season. Some details of past transits (both observed and not observed) can be found here: 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2021, 2022, 2023, 2024 and 2025.

John Southworth's Transiting Extrasolar Planets Catalogue (TEPCat) can be accessed here.

La Silla Meteo-monitor
Las Campanas weather page
CTIO weather page and webcams

 

Transits to observe

Transit on the night beginning 3rd May
Priority   =   medium
Target   =   WASP-43
Start and end times   =   01:15 UT to 04:00 UT
Filter to use   =   I
Exposure time   =   100 s
Need to observe east of the pier (Main mode) 

WASP-043             HJD     Airmass  HA(hr)    Date and time (UT)   Sunalt  Moon-alt-illum-dist
Ingress - 2hr  2461164.50809  1.060  -0.138  2026-05-04 00:08:00.57  -26.45   10.1  0.951   86.7
Ingress - 1hr  2461164.54976  1.085   0.865  2026-05-04 01:08:00.87  -39.53   21.8  0.949   87.2
Ingress        2461164.59142  1.186   1.868  2026-05-04 02:08:01.17  -52.50   33.9  0.948   87.6
Midpoint       2461164.61700  1.301   2.484  2026-05-04 02:44:51.03  -60.22   41.5  0.947   87.9
Egress         2461164.64258  1.479   3.099  2026-05-04 03:21:40.89  -67.48   49.1  0.945   88.2
Egress + 1hr   2461164.68424  2.023   4.102  2026-05-04 04:21:41.19  -76.08   61.7  0.944   88.7
Egress + 2hr   2461164.72591  3.513   5.105  2026-05-04 05:21:41.48  -73.87   74.4  0.942   89.1

 

Transit on the night beginning 5th May
Priority   =   high
Target   =   Qatar-2
Start and end times   =   01:00 UT to 04:15 UT
Filter to use   =   R
Exposure time   =   100 s
Can observe either side of the pier (Main is best) 

Qatar-2              HJD     Airmass  HA(hr)    Date and time (UT)   Sunalt  Moon-alt-illum-dist
Ingress - 2hr  2461166.49394  1.982  -3.937  2026-05-05 23:43:16.60  -21.36  -11.7  0.842   64.7
Ingress - 1hr  2461166.53561  1.466  -2.935  2026-05-06 00:43:16.69  -34.41   -1.0  0.839   65.2
Ingress        2461166.57727  1.224  -1.932  2026-05-06 01:43:16.79  -47.46    9.3  0.836   65.7
Midpoint       2461166.61498  1.118  -1.025  2026-05-06 02:37:34.59  -59.04   19.7  0.834   66.1
Egress         2461166.65269  1.081  -0.117  2026-05-06 03:31:52.40  -69.74   30.4  0.831   66.5
Egress + 1hr   2461166.69435  1.109   0.886  2026-05-06 04:31:52.50  -77.22   42.7  0.828   67.0
Egress + 2hr   2461166.73602  1.217   1.888  2026-05-06 05:31:52.60  -72.83   55.1  0.825   67.5

 

Transit on the night beginning 7th May
Priority   =   high
Target   =   WASP-103
Start and end times   =   04:00 UT to 08:50 UT
Filter to use   =   R
Exposure time   =   100 s
Need to observe east of the pier (Main mode) 

WASP-103             HJD     Airmass  HA(hr)    Date and time (UT)   Sunalt  Moon-alt-illum-dist
Ingress - 2hr  2461168.63513  1.906  -3.166  2026-05-08 03:07:38.75  -65.49    4.3  0.670   58.8
Ingress - 1hr  2461168.67679  1.492  -2.163  2026-05-08 04:07:38.65  -75.74   15.9  0.666   59.1
Ingress        2461168.71846  1.306  -1.161  2026-05-08 05:07:38.54  -76.47   28.1  0.662   59.5
Midpoint       2461168.77462  1.244   0.191  2026-05-08 06:28:30.63  -62.60   44.9  0.657   60.0
Egress         2461168.83078  1.359   1.542  2026-05-08 07:49:22.71  -45.38   61.8  0.652   60.6
Egress + 1hr   2461168.87245  1.613   2.545  2026-05-08 08:49:22.60  -32.32   74.1  0.648   61.0
Egress + 2hr   2461168.91411  2.183   3.548  2026-05-08 09:49:22.50  -19.32   83.2  0.644   61.3

 

Transit on the night beginning 8th May
Priority   =   high
Target   =   WASP-87
Start and end times   =   23:30 UT to 04:30 UT
Filter to use   =   R
Exposure time   =   100 s
Need to observe east of the pier (Main mode) 

WASP-087             HJD     Airmass  HA(hr)    Date and time (UT)   Sunalt  Moon-alt-illum-dist
Ingress - 2hr  2461169.43889  1.417  -3.538  2026-05-08 22:26:19.18   -5.08  -40.1  0.595   92.6
Ingress - 1hr  2461169.48055  1.244  -2.536  2026-05-08 23:26:19.25  -18.11  -38.0  0.591   93.0
Ingress        2461169.52222  1.144  -1.533  2026-05-09 00:26:19.32  -31.09  -32.4  0.587   93.3
Midpoint       2461169.58440  1.092  -0.036  2026-05-09 01:55:51.77  -50.57  -19.5  0.581   93.9
Egress         2461169.64658  1.140   1.460  2026-05-09 03:25:24.22  -69.10   -2.3  0.575   94.5
Egress + 1hr   2461169.68825  1.234   2.463  2026-05-09 04:25:24.29  -77.69    8.3  0.570   94.9
Egress + 2hr   2461169.72991  1.401   3.466  2026-05-09 05:25:24.36  -74.41   20.4  0.566   95.3

 

Transit on the night beginning 9th May
Priority   =   medium
Target   =   Qatar-2
Start and end times   =   01:15 UT to 04:15 UT
Filter to use   =   R
Exposure time   =   100 s
Can observe either side of the pier (Main is best) 

Qatar-2              HJD     Airmass  HA(hr)    Date and time (UT)   Sunalt  Moon-alt-illum-dist
Ingress - 2hr  2461170.50529  1.654  -3.399  2026-05-09 23:59:47.83  -25.44  -43.3  0.490  112.6
Ingress - 1hr  2461170.54696  1.315  -2.396  2026-05-10 00:59:47.95  -38.50  -37.9  0.485  113.1
Ingress        2461170.58862  1.152  -1.393  2026-05-10 01:59:48.07  -51.54  -29.6  0.481  113.7
Midpoint       2461170.62633  1.089  -0.486  2026-05-10 02:54:05.90  -63.05  -20.6  0.477  114.1
Egress         2461170.66404  1.087   0.422  2026-05-10 03:48:23.72  -73.37  -10.5  0.474  114.6
Egress + 1hr   2461170.70570  1.155   1.425  2026-05-10 04:48:23.84  -78.34    1.6  0.469  115.1
Egress + 2hr   2461170.74737  1.323   2.427  2026-05-10 05:48:23.96  -70.73   13.6  0.465  115.6

 

 

Targets for the 2026 season

Our targets are generally bright transiting planetary systems which are visible from La Silla. This primarily comprises objects found by the SuperWASP, HAT-South and NGTS surveys.

Here is a table giving information about the targets for this season:

Name RA Dec V mag Tzero (HJD) Period (d) Transit depth Transit duration Notes
HATS-18 11 35 49.92 -29 09 21.6 14.1 2457089.90598 (26) 0.83784340 (47) 2.3 % 1.9 hr Orbital decay
NGTS 0522 05 22 18.2 -25 07 10.4 16 2457288.41292 (10) 1.74774445 (45) 20 % 1.2 hr M-dwarf eclipsing binary
Qatar-2 13 50 37.40 -06 48 14.4 13.5 2455624.26679 (11) 1.3371182 (37) 3.2 % 1.8 hr Long-term monitoring
SDSS-MEB-1 03 18 23.88 -01 00 18.4 19 24559865.98095 (11) 0.4070230 (35) 40 % 1.0 hr M-dwarf eclipsing binary
TOI-2109 16 52 44.72 +16 34 47.8 10.2 2459378.45930 (5) 0.672474016 (57) 0.6 % 1.9 hr Orbital decay
WASP-18 01 37 25.03 -45 40 40.3 9.3 54664.90531 (16) 0.941452889 (82) 1.0 % 2.1 hr Orbital decay
WASP-19 09 53 40.08 -45 39 33.0 12.6 2454775.33745 (35) 0.7888396 (10) 2.4 % 1.5 hr Orbital decay
WASP-43 10 19 38.01 -09 48 22.5 12.4 2455528.868634 (35) 0.813473978 (35) 2.7 % 1.3 hr Orbital decay
WASP-87 12 21 17.92 -52 50 27.0 10.7 2458276.86091 (12) 1.68279435 (10) 0.7 % 2.7 hr Orbital decay
WASP-103 16 37 15.57 +07 11 00.1 12.1 2457308.32455 (2) 0.925545447 (24) 1.3 % 2.6 hr Orbital decay
WASP-128 11 31 26.10 -41 41 22.3 12.4 2456720.68318 (21) 2.20883665 (45) 0.8 % 2.7 hr Orbital decay

 

Completed targets

Name RA Dec V mag Tzero (HJD) Period (d) Transit depth Transit duration Notes
GJ 1214 17 15 18.94 +04 57 49.7 14.7 2454983.90876 (9) 1.580393 (12) 1.3 % 0.9 hr 2013A+A...549A..10H
HAT-P-26 14 12 37.54 +04 03 36.1 11.7 2455304.65218 (25) 4.23450236 (3) 0.6 % 2.5 hr Griffiths
HATS-2 11 46 57.38 -22 33 46.8 13.6 2455954.58576 (9) 1.354133 (1) 2.2 % 2.1 hr 2024A+A...685A.131B
HATS-13 21 07 50.75 -26 05 48.0 13.9 2456340.31705 (26) 3.0440499 (27) 2.5 % 2.6 hr Southworth
HATS-18 11 35 49.92 -29 09 21.6 14.1 2457089.90598 (26) 0.83784340 (47) 2.3 % 1.9 hr 2022MNRAS.515.3212S
HATS-22 11 36 02.16 -29 32 35.9 13.5 2457078.58030 (22) 4.7228124 (52) 2.5 % 2.2 hr Southworth
HATS-34 00 03 05.88 -62 28 09.6 13.9 2456634.85732 (75) 2.1061607 (47) 1.6 % 1.6 hr Southworth
HATS-52 09 20 21.05 -31 16 09.6 13.7 2456929.03039 (33) 1.36665436 (94) 2.0 % 2.1 hr Southworth
HIP 65 00 00 44.56 -54 49 50.9 11.1 2458326.10418 (11) 0.9809734 (31) 0.6 % 0.8 hr 2026MNRAS.545f2057G
K2-31 16 21 45.78 -23 32 52.3 10.8 2457191.70889 (24) 1.257850 (2) 0.6 % 1.0 hr Griffiths
NGTS-6 05 03 10.90 -30 23 57.6 14.1 2457982.3785 (3) 0.882058 (1) 2.2 % 0.8 hr 2026MNRAS.545f2057G
NGTS-10 06 07 29.35 -25 35 41.6 14.3 2453988.7993 (17) 0.7668944 (3) 2.1 % 1.1 hr 2026MNRAS.545f2057G
NGTS-28 14 11 42.99 -29 58 26.7 14.7 2458953.9685 (1) 1.2541 (1) 2.0 % 1.0 hr Griffiths
Qatar-2 13 50 37.40 -06 48 14.4 13.5 2455624.26679 (11) 1.3371182 (37) 3.2 % 1.8 hr Hinse
TOI 4184.01 02 55 18.38 -79 24 55.4 17.1 2458326.7897 (13) 4.90199 (22) 1.2 % 1.3 hr 2023A+A...677A..38B
WASP-2 20 30 54.13 +06 25 46.4 12.0 2454008.73205 (28) 2.152226 (4) 1.7 % 1.8 hr 2010MNRAS.408.1680S
WASP-4 23 34 15.06 -42 03 41.1 12.5 2454697.79749 (31) 1.33823150 (61) 3.0 % 2.2 hr (1) 2009MNRAS.399..287S
(2) 2019MNRAS.490.4230S
(3) 2025MNRAS.541..714B
WASP-5 23 57 23.74 -41 16 37.5 12.3 2454375.62494 (24) 1.6284246 (13) 1.4 % 2.4 hr (1) 2009MNRAS.396.1023S
(2) paper in preparation
WASP-6 23 12 37.75 -22 40 26.1 11.9 2454596.43267 (13) 3.3610060 (29) 2.2 % 2.6 hr 2015MNRAS.450.1760T
WASP-15 13 55 42.71 -32 09 34.6 11.0 2454584.69823 (29) 3.7520656 (28) 1.2 % 3.7 hr 2013MNRAS.434.1300S
WASP-16 14 18 43.92 -20 16 31.8 11.3 2454584.42878 (3) 3.1186009 (14) 1.3 % 1.9 hr 2013MNRAS.434.1300S
WASP-17 15 59 50.95 -28 03 42.3 11.6 2454559.18102 (28) 3.7354417 (72) 1.8 % 4.4 hr 2012MNRAS.426.1338S
WASP-18 01 37 25.03 -45 40 40.3 9.3 54664.90531 (16) 0.941452889 (82) 1.0 % 2.1 hr 2009ApJ...707..167S
WASP-19 09 53 40.08 -45 39 33.0 12.6 2454775.3372 (2) 0.7888399 (8) 2.4 % 1.5 hr (1) 2013MNRAS.436....2M
(2) arXiv:2603.12395
WASP-22 03 31 16.32 -23 49 10.9 12.0 2455497.39967 (25) 3.5327313 (58) 1.0 % 3.5 hr 2016MNRAS.457.4205S
WASP-24 15 08 51.74 +02 20 35.8 11.2 2455062.64955 (37) 2.3412083 (47) 1.2 % 2.6 hr 2014MNRAS.444..776S
WASP-24 EB 15 08 50.29 +02 20 31.4 18.0 2458311.592261 1.15618263 50 % 1.9 hr Eclipsing binary
WASP-25 13 01 26.37 -27 31 19.9 11.9 2455274.99649 (23) 3.764825 (5) 2.2 % 2.8 hr 2014MNRAS.444..776S
WASP-26 00 18 24.70 -15 16 02.3 11.3 2455123.6379 (5) 2.75660 (1) 1.0 % 2.4 hr 2014MNRAS.444..776S
WASP-29 23 51 31.08 -39 54 24.2 11.3 2454249.3305 (15) 3.922732 (36) 0.8 % 2.8 hr Nikolov
WASP-30 23 53 38.03 -10 07 05.1 11.9 2455443.06046 (38) 4.156739 (11) 0.4 % 3.1 hr Brown dwarf
WASP-32 00 15 50.85 +01 12 00.8 11.3 2455151.05460 (50) 2.7186591 (24) 1.2 % 2.4 hr Griffiths
WASP-41 12 42 28.50 -30 38 23.6 11.6 2455343.463 (1) 3.052401 (4) 1.9 % 2.6 hr 2016MNRAS.457.4205S
WASP-42 12 51 55.62 -42 04 25.2 12.6 2455650.56720 (23) 4.9816872 (73) 2.0 % 2.9 hr 2016MNRAS.457.4205S
WASP-45 00 20 57.00 -35 59 53.8 11.8 2455441.26925 (58) 3.1260876 (35) 1.5 % 1.8 hr 2016MNRAS.456..990C
WASP-46 21 14 56.86 -55 52 18.1 12.9 2455392.31553 (20) 1.4303700 (23) 2.1 % 1.7 hr 2016MNRAS.456..990C
WASP-52 23 13 58.76 +08 45 40.6 12.2 2455793.68143 (9) 1.7497798 (12) 2.7 % 1.8 hr 2017MNRAS.465..843M
WASP-55 13 35 01.94 -17 30 12.7 12.9 2455737.9396 (3) 4.465633 (4) 1.9 % 3.5 hr 2016MNRAS.457.4205S
WASP-57 14 55 16.84 -02 03 27.5 13.0 2455717.87811 (2) 2.838971 (2) 1.8 % 2.3 hr 2015MNRAS.454.3094S
WASP-67 19 42 58.51 -19 56 58.4 12.5 2455824.3742 (2) 4.61442 (1) 1.4 % 3.1 hr 2014A+A...568A.127M
WASP-74 20 18 09.32 -01 04 32.6 9.8 2456506.8918 (2) 2.137750 (1) 0.8 % 2.3 hr 2019MNRAS.485.5168M
WASP-75 22 49 32.57 -10 40 32.0 11.5 2456016.2669 (3) 2.484193 (3) 1.0 % 2.0 hr Southworth
WASP-80 20 12 40.18 -02 08 39.2 11.9 2456125.41751 (6) 3.0678504 (25) 3.5 % 2.1 hr 2014A+A...562A.126M
WASP-88 20 38 02.70 -48 27 43.2 11.4 2456474.73154 (86) 4.9540000 (19) 0.8 % 6.0 hr Southworth
WASP-91 23 51 22.89 -70 09 10.2 12.0 2456297.7190 (2) 2.798581 (3) 1.7 % 2.3 hr Southworth
WASP-95 22 29 49.73 -48 00 11.0 10.1 2456338.45851 (24) 2.1846730 (14) 1.4 % 2.8 hr Southworth
WASP-103 16 37 15.57 +07 11 00.1 12.1 2456459.59957 (75) 0.925542 (19) 1.3 % 2.6 hr (1) 2015MNRAS.447..711S
(2) 2016MNRAS.463...37S
WASP-145 21 29 00.90 -58 50 10.1 11.5 2456844.16526 (26) 1.7690381 (8) 0.9 % 1.0 hr Griffiths
WASP-173 23 36 40.32 -34 36 40.4 11.2 2457288.8585 92) 1.38665318 (27) 1.3 % 2.3 hr 2026MNRAS.545f2057G
WASP-174 13 03 10.57 -41 23 05.3 11.8 2457465.9322 (5) 4.233700 (3) 0.8 % 2.0 hr Southworth
TRAPPIST-1 23 06 29.28 -05 02 28.5 18.80 - - - - Special target
2MASS J05082729-2101444 05 08 27.30 -21 01 44.4 14.7 - - 5-10 % ≈1 hr Special target

 

Finder charts

Finder charts have been generated for each target. In each case the base image comes from ESO's DSS2 (red) photographic sky survey and is 25×25 arcmin. The specific area of sky to be observed is highlighted, and the variable and comparison stars are labelled with V and Cn.

If you have problems windowing the CCD (e.g. if you are operating remotely and the connection is slow) then just use the whole CCD. This is OK because the CCD readout is pretty fast.

Update since 2021: choose the orientation of the finder chart depending on which side of the pier the telescope is. My understanding is:
Main mode (east of the pier): use the rotate 270 chart
Rev mode (west of the pier): use the rotate 90 chart

HATS-18 unrotatedrotate 90rotate 180rotate 270
Qatar-2 unrotatedrotate 90rotate 180rotate 270
TOI-2109 unrotatedrotate 90rotate 180rotate 270
WASP-19 unrotatedrotate 90rotate 180rotate 270
WASP-43 unrotatedrotate 90rotate 180rotate 270
WASP-87 unrotatedrotate 90rotate 180rotate 270
WASP-103 unrotatedrotate 90rotate 180rotate 270
WASP-128 unrotatedrotate 90rotate 180rotate 270

 

Observing instructions

General observing instructions
Handy checklist

Sending the data

Since the 2015 season all DFOSC data are automatically archived on the Czech server, from which they can be retrieved via sftp. Please make sure the fits files are appropriately labelled (e.g. include the target name, or "flat" with the filter used, or "bias" etc) so they can be easily identified in the archive. Please also send a notification email to taylorsouthworth@gmail.com saying what has been done. Many thanks!

Example fits files and reduced data from the 2008 and 2009 observing seasons

WASP-5:   Transits of WASP-5 were observed on the nights of 2008/08/28 and 2008/09/20. Please note that these were obtained with different CCD window parameters than recommended for the current observing season.   In-focus images: JPG (523KB) and gzipped FITS (1.5MB).   Defocussed images: JPG (599KB) and gzipped FITS (1.8MB).   Surface plot of the PSF (259KB).   Plot of the final light curve in the paper (68KB).

WASP-4:   Four transits of WASP-4 were observed during 2008 August to September. Note that these were obtained with different CCD window parameters than recommended for the current observing season.   In-focus images: JPG (509KB) and gzipped FITS (1.2MB).   Defocussed images: JPG (267KB) and gzipped FITS (1.5MB).   Plot of the four individual transit observations (109KB).   Plot of the final light curve in the paper (79KB).

WASP-18: this is difficult because it is so bright and has few comparison stars. Due to this we used the V-filter and shorter exposure times (80s) in the 2009 season. An example observation can be found here: gzipped fits file (2.7MB) and JPG image (0.4MB). Note that the window covers quite a large part of the CCD in order to get a good comparison star (bottom left), as well as WASP-18 (top right) carefully positioned between two columns of bad pixels.

 

Pointing limits

The current pointing restriction plot (dark blue for east of the pier, light blue for west of the pier)

Old pointing restriction plot: from the user manual

Old pointing restriction plot: from the control room

 

Transits observed for TRAPPIST-1

TRAPPIST-1b (2017/09/23) plot Great transit with scatter 1.9 mmag Published
TRAPPIST-1b (2017/09/20) plot Good transit with scatter 2.5 mmag Published
TRAPPIST-1c (2017/09/14) plot Good transit with scatter 2.4 mmag Published
TRAPPIST-1b (2017/08/25) plot Good transit with scatter 2.4 mmag Published
TRAPPIST-1e (2017/08/23) plot Failure due to heavy cloud Published
TRAPPIST-1b (2017/08/22) plot Failure due to heavy cloud Published
TRAPPIST-1b (2017/08/19) plot Good transit with scatter 2.6 mmag Published
TRAPPIST-1e (2017/08/17) plot Transit not detected again. TRAPPIST-1e ephemeris may be wrong. Published
TRAPPIST-1b+c (2017/08/16) plot Two transits observed very nicely! Published
TRAPPIST-1c+d (2017/07/30) plot Scatter 6 mmag due to cloud; transit not clearly detected Published
TRAPPIST-1h (2017/07/27) plot Scatter 3.7 mmag due to cloud; transit not detected Published
TRAPPIST-1g (2017/07/26) plot Full transit with scatter 2.6 mmag Published
TRAPPIST-1c (2017/07/25) plot Good transit with scatter 1.8 mmag Published
TRAPPIST-1f (2017/07/21) plot Good transit with scatter 2.1 mmag Published
TRAPPIST-1e (2017/06/29) plot Scatter 2.8 mmag but 5-mmag-deep transit not detected Published
TRAPPIST-1b (2017/06/19) plot Good transit with scatter 1.9 mmag Published
TRAPPIST-1b (2017/06/12) plot Full transit with scatter 2.9 mmag Published
TRAPPIST-1c (2017/06/09) plot Full transit with scatter 2.6 mmag Published

 

Eclipses observed for the eclipsing binary associated with WASP-24

WASP-24 EB (2019/07/27) plot Full eclipse with scatter 7 mmag  
WASP-24 EB (2019/07/12) plot Full eclipse but scatter 11 mmag due to clouds  
WASP-24 EB (2019/07/05) plot Most of an eclipse with scatter 6 mmag  
WASP-24 EB (2019/07/01) plot Full eclipse with scatter 6 mmag  
WASP-24 EB (2019/06/20) plot Full eclipse with scatter 6 mmag  
WASP-24 EB (2019/06/17) plot Full eclipse but scatter 13 mmag due to 3 arcsec seeing  
WASP-24 EB (2019/06/16) plot Only part of an eclipse due to high wind  
WASP-24 EB (2019/06/09) plot Lovely eclipse with scatter 4 mmag  
WASP-24 EB (2019/06/06) plot Partial eclipse with scatter 6 mmag before telescope stopped  
WASP-24 EB (2019/06/05) plot Lovely eclipse with scatter 6 mmag  
WASP-24 EB (2019/06/02) plot Lovely eclipse with scatter 5 mmag  
WASP-24 EB (2019/05/22) plot Lovely secondary eclipse with scatter 4 mmag  
WASP-24 EB (2019/05/15) plot Nice secondary eclipse with scatter 6 mmag  
WASP-24 EB (2019/05/11) plot Lovely eclipse on schedule with scatter 4 mmag  
WASP-24 EB (2018/08/24) plot Nice eclipse on schedule with scatter 10 mmag  
WASP-24 EB (2018/08/09) plot Nice eclipse on schedule with scatter 9 mmag  
WASP-24 EB (2018/08/02) plot Nice eclipse on schedule again, scatter 10 mmag  
WASP-24 EB (2018/07/12) plot Lovely eclipse occurred right on schedule, scatter 5 mmag  

 

Eclipses observed for the eclipsing binary NGTS 0522

NGTS 0522 (2025/09/24) plot Full secondary eclipse with scatter 2.0 mmag  
NGTS 0522 (2025/09/17) plot Full secondary eclipse with scatter 2.2 mmag  
NGTS 0522 (2024/09/15) plot Full secondary eclipse with scatter 2.1 mmag  
NGTS 0522 (2024/09/08) plot Full secondary eclipse with scatter 2.4 mmag  
NGTS 0522 (2023/10/05) plot Some cloud problems and a jump at eclipse midpoint; scatter 2.1 mmag  
NGTS 0522 (2023/09/21) plot Full secondary eclipse with scatter 2.5 mmag  
NGTS 0522 (2021/10/15) plot Full secondary eclipse with scatter 3.4 mmag  
NGTS 0522 (2021/10/14) plot Full primary eclipse with scatter 2.5 mmag  
NGTS 0522 (2021/09/23) plot Full primary eclipse with scatter 2.4 mmag  
NGTS 0522 (2021/09/16) plot Full primary eclipse with scatter 2.3 mmag  
NGTS 0522 (2021/09/09) plot Full primary eclipse with scatter 3 mmag (too much defocus)  
NGTS 0522 (2021/09/02) plot Full primary eclipse with scatter 2 mmag  
NGTS 0522 (2021/08/26) plot Full primary eclipse with scatter 3 mmag despite some clouds  

 

Eclipses observed for the eclipsing binary SDSS-MEB-1

SDSS-MEB-1 (2025/09/16) plot Nice secondary eclipse with scatter 8 mmag  
SDSS-MEB-1 (2025/09/15) plot Nice primary eclipse with scatter 7 mmag  
SDSS-MEB-1 (2024/09/11) plot Nice secondary eclipse with scatter 8 mmag  
SDSS-MEB-1 (2024/08/31) plot Nice secondary eclipse with scatter 9 mmag, but a gap due to telescope pointing failure  
SDSS-MEB-1 (2024/08/30) plot Nice primary eclipse with scatter 10 mmag, but a gap due to telescope pointing failure  
SDSS-MEB-1 (2023/10/09) plot Nice primary eclipse with scatter 8 mmag  
SDSS-MEB-1 (2023/10/07) plot Nice primary eclipse with scatter 9 mmag  
SDSS-MEB-1 (2023/10/06) plot Nice primary eclipse with scatter 11 mmag  
SDSS-MEB-1 (2023/09/25) plot Nice secondary eclipse with scatter 7 mmag  
SDSS-MEB-1 (2023/09/14) plot Nice secondary eclipse with scatter 9 mmag  
SDSS-MEB-1 (2023/09/14) plot Nice secondary eclipse with scatter 12 mmag  
SDSS-MEB-1 (2023/09/14) plot Nice secondary eclipse with scatter 12 mmag  
SDSS-MEB-1 (2023/09/06) plot Cloudy primary eclipse with scatter 18 mmag  
SDSS-MEB-1 (2023/08/26) plot Nice secondary eclipse with scatter 10 mmag  
SDSS-MEB-1 (2023/08/26) plot Nice primary eclipse with scatter 8 mmag  
SDSS-MEB-1 (2023/08/14) plot Nice secondary eclipse with scatter 10 mmag  
SDSS-MEB-1 (2023/08/13) plot Nice primary eclipse with scatter 9 mmag  
SDSS-MEB-1 (2022/10/12) plot Eclipse observed with scatter 15 mmag  
SDSS-MEB-1 (2022/10/08) plot Eclipse observed despite some clouds  
SDSS-MEB-1 (2022/09/23) plot Eclipse observed despite some clouds  
SDSS-MEB-1 (2022/09/22) no plot Target was outside the CCD window  
SDSS-MEB-1 (2022/09/09) plot Eclipse detected with large scatter due to sky conditions  

 

Transits observed during the 2025 season for Luigi Mancini

TOI-1130 (R band) (2025/06/26) plot Nice deep transit  
TOI-5030 (I band) (2025/06/21) plot Clear detection of transit  
TOI-3246 (B band) (2025/05/24) plot Shallow transit  
TOI-6615 (B band) (2025/05/19) plot Clear detection of transit  
TOI-3243 (I band) (2025/05/01) plot Full transit in the I-band  
TOI-3243 (B band) (2025/04/29) plot Part of a transit  
TOI-3243 (need to fix this) (2025/04/29) plot Full transit in B with some systematics  
TOI-1743 (need to fix this) (2025/04/17) plot Full transit in B with some systematics  

 

Transits observed during the 2026 season

WASP-43 (2026/04/29) plot Lovely transit with scatter 0.47 mmag  
Qatar-2 (2026/04/27) plot Full transit with scatter 1.3 mmag  
TOI-2109 (2026/04/26) plot Full transit with scatter 1.3 mmag  
WASP-103 (2026/04/24) plot Good transit with scatter 0.74 mmag  
WASP-19 (2026/04/23) plot Full transit with scatter 1.3 mmag  
TOI-2109 (2026/04/22) plot Cloudy transit with scatter 1.5 mmag  
WASP-87 (2026/04/21) plot Cloudy transit with scatter 1.1 mmag (binned x5)  
WASP-128 (2026/04/20) plot Cloudy transit with scatter 1.2 mmag  
WASP-87 (2026/04/16) plot Cloudy transit with scatter 1.4 mmag (binned x5)  
WASP-19 (2026/04/12) plot Cloudy transit with scatter 1.8 mmag  
WASP-43 (2026/04/11) plot Full transit with scatter 1.3 mmag  
HATS-18 (2026/04/10) plot Full transit with scatter 1.5 mmag  

 

Transits observed during the 2025 season

WASP-5 (2025/09/20) plot Full transit with scatter 1.3 mmag  
WASP-18 (2025/09/19) plot Full transit with scatter 0.9 mmag  
WASP-18 (2025/09/18) plot Full transit with scatter 0.8 mmag  
WASP-32 (2025/09/14) plot Full transit with scatter 0.8 mmag  
NGTS-28 (2025/07/29) plot Transit lost to cloud  
WASP-145 (2025/07/27) plot Transit lost to cloud and telescope DEC axis issue  
WASP-145 (2025/07/25) plot Full transit with scatter 1.1 mmag (binned by 5)  
NGTS-28 (2025/07/24) plot Full transit with scatter 3.2 mmag and a starspot  
NGTS-28 (2025/07/19) plot OK transit with scatter 2.9 mmag  
WASP-145 (2025/07/18) plot Full transit with scatter 1.5 mmag (binned by 5)  
K2-31 (2025/07/17) plot Full transit with scatter 1.1 mmag  
K2-31 (2025/06/27) plot Full transit with scatter 0.9 mmag  
HAT-P-26 (2025/06/20) plot Full transit with scatter 1.1 mmag (binned by 5)  
WASP-145 (2025/06/18) plot Full transit with scatter 2.7 mmag (binned by 5)  
WASP-128 (2025/06/17) plot Bad weather meant we only got the middle bit of the transit  
NGTS-28 (2025/05/31) plot Cloudy transit with scatter 2.5 mmag  
K2-31 (2025/05/29) plot Target star saturated  
WASP-43 (2025/05/28) plot Full transit with scatter 0.8 mmag  
Qatar-2 (2025/05/25) plot Full transit with scatter 0.9 mmag  
NGTS-28 (2025/05/21) plot Full transit with scatter 1.4 mmag  
Qatar-2 (2025/05/17) plot Partial transit with scatter 1.1 mmag  
Qatar-2 (2025/05/13) plot Cloudy transit with scatter 1.6 mmag  
WASP-19 (2025/05/11) plot Noisy transit with scatter 1.8 mmag under analysis
K2-31 (2025/05/10) plot Target and comparison stars saturated  
WASP-19 (2025/05/07) plot Cloudy transit with scatter 2.3 mmag under analysis
HATS-18 (2025/05/05) plot Decent transit with scatter 2.0 mmag  
HATS-18 (2025/05/04) plot Decent transit with scatter 1.6 mmag  
NGTS-28 (2025/04/27) plot Full transit with scatter 2.2 mmag (component A only)  
WASP-19 (2025/04/26) plot Partial transit with scatter 1.2 mmag (timing error by JS, sorry)  
WASP-128 (2025/04/25) plot Slightly cloudy transit with scatter 1.3 mmag  
HATS-18 (2025/04/24) plot Slightly cloudy transit with scatter 1.0 mmag  
WASP-43 (2025/04/23) plot Full transit with scatter 0.6 mmag  
WASP-19 (2025/04/22) plot Slightly cloudy transit with scatter 1.6 mmag under analysis
HATS-18 (2025/04/19) plot Cloudy transit with scatter 2.6 mmag  
NGTS-28 (2025/04/17) plot Full transit with scatter 0.8 mmag  

 

Transits observed during the 2024 season

NGTS-10 (2024/09/27) plot Full transit with scatter 1.4 mmag Published
WASP-4 (2024/09/26) plot Almost full transit with scatter 1.0 mmag and starspot Published
WASP-4 (2024/09/18) plot Lost to cloud  
NGTS-10 (2024/09/17) plot Two large data gaps due to telescope tracking failure Published
WASP-18 (2024/09/14) plot Full transit but split into two halves  
NGTS-6 (2024/09/12) plot Full transit with scatter 3.0 mmag Published
NGTS-6 (2024/09/04) plot Full transit with scatter 1.6 mmag Published
HIP 65 (2024/09/03) plot Full transit with scatter 1.0 mmag (binned) Published
WASP-32 (2024/09/01) plot Full transit with scatter 1.3 mmag (binned)  
WASP-5 (2024/08/22) plot Full transit with scatter 0.8 mmag (binned)  
WASP-173 (2024/08/21) plot Full transit with scatter 1.8 mmag (binned) and some systematics Published
WASP-173 (2024/08/14) plot Second half of transit lost to clouds  
WASP-18 (2024/08/12) plot Full transit with scatter 0.7 mmag but some systematics  
WASP-4 (2024/07/29) plot Most of a transit with scatter 1.0 mmag (telescope and cloud issues) Published
WASP-173 (2024/07/28) plot Transit lost to data problems  
TOI-181 (2024/07/28) plot I-band light curve  
WASP-4 (2024/07/25) plot Full transit with scatter 0.7 mmag Published
TOI-181 (2024/07/18) plot U-band light curve  
HIP 65 (2024/07/18) plot Full transit but with large scatter (1.9 mmag) Published
HIP 65 (2024/07/17) plot Full transit with scatter 1.2 mmag Published
WASP-32 (2024/07/14) plot Full transit with scatter 1.1 mmag (high airmass at start)  
HIP 65 (2024/07/13) plot Transit lost to telescope issue Published
K2-31 (2024/07/11) plot Good transit (scatter 0.7 mmag) with gap due to Dec axis  
WASP-145 (2024/07/08) plot Full transit with scatter 1.1 mmag (binned ×3)  
K2-31 (2024/07/06) plot Finally a good transit for K2-31: scatter 0.7 mmag  
WASP-173 (2024/07/02) plot Transit affected by telescope pointing problems Published
WASP-145 (2024/07/01) plot Full transit with scatter 1.0 mmag (binned ×5)  
HATS-18 (2024/06/29) plot Full transit with scatter 1.3 mmag  
K2-31 (2024/06/26) plot Cloud-affected transit with scatter 1.0 mmag  
HATS-18 (2024/06/24) plot Full transit with scatter 1.3 mmag  
K2-31 (2024/06/07) plot Transit lost to clouds  
Qatar-2 (2024/06/06) plot Full transit with scatter 1.3 mmag (high cadence)  
HAT-P-26 (2024/06/04) plot Transit lost to clouds  
Qatar-2 (2024/06/02) plot Cloud-affected transit with scatter 1.3 mmag  
WASP-145 (2024/05/30) plot Full transit with scatter 1.4 mmag (binned ×5)  
HATS-18 (2024/05/29) plot Full transit with scatter 1.4 mmag  
K2-31 (2024/05/28) plot Transit lost to clouds  
WASP-43 (2024/05/27) plot Full transit with scatter 2.0 mmag (high cadence)  
HATS-18 (2024/05/24) plot Transit lost to clouds  
K2-31 (2024/05/19) plot Transit lost to clouds  
Qatar-2 (2024/05/17) plot Cloud-affected transit with scatter 1.2 mmag  
K2-31 (2024/05/09) plot Half a transit due to high wind  
HAT-P-26 (2024/05/01) plot Full transit with scatter 0.8 mmag (binned ×3)  

 

Transits observed during the 2023 season

NGTS-10 (2023/10/11) plot Full transit with scatter 1.2 mmag Published
NGTS-10 (2023/10/08) plot Full transit with scatter 1.5 mmag Published
NGTS-6 (2023/10/04) plot Full transit with scatter 2.2 mmag (unbinned) Published
WASP-5 (2023/10/03) plot Most of a transit with scatter 1.1 mmag  
WASP-32 (2023/09/30) plot Transit lost to clouds  
WASP-4 (2023/09/28) plot Lovely transit with scatter 0.85 mmag Published
WASP-18 (2023/09/26) plot Most of a transit with scatter 0.84 mmag  
WASP-145 (2023/09/22) plot Full transit with scatter 1.8 mmag  
WASP-5 (2023/09/15) plot Full transit with scatter 1.0 mmag and a starspot  
WASP-145 (2023/09/13) plot Full transit with scatter 1.9 mmag (binned x5)  
HIP 65 (2023/09/12) plot Full transit with scatter 0.94 mmag Published
HIP 65 (2023/09/08) plot Transit lost to clouds  
HIP 65 (2023/09/05) plot Transit lost to clouds  
NGTS-6 (2023/09/04) plot Transit lost to clouds  
WASP-5 (2023/08/28) plot Full transit with scatter 0.60 mmag  
WASP-173 (2023/08/25) plot Full transit with scatter 1.1 mmag (binned x5) Published
WASP-18 (2023/08/24) plot Transit with scatter 0.70 mmag and some systematics  
WASP-32 (2023/08/20) plot Full cloudy transit with scatter 0.75 mmag  
WASP-4 (2023/08/16) plot Slightly cloudy transit with scatter 0.89 mmag Published
WASP-4 (2023/08/12) plot Lovely transit with scatter 0.57 mmag Published
WASP-4 (2023/08/04) plot Excellent transit with scatter 0.81 mmag Published
WASP-173 (2023/07/31) plot Full transit with scatter 1.3 mmag (binned x5) Published
WASP-145 (2023/07/29) plot Full transit with scatter 4.1 mmag (binned x5) due to cloud  
WASP-145 (2023/07/22) plot Full transit with scatter 2.0 mmag (binned x5) due to cloud  
HIP 65 (2023/07/16) plot Full transit with scatter 0.65 mmag Published
HIP 65 (2023/07/14) plot Full transit with scatter 0.59 mmag Published
K2-31 (2023/06/26) plot Full transit with scatter 1.2 mmag due to some cloud  
Qatar-2 (2023/06/15) plot Full transit with scatter 0.87 mmag  
K2-31 (2023/06/12) plot Full transit with scatter 0.70 mmag  
Qatar-2 (2023/06/11) plot Full transit with scatter 0.80 mmag  
HAT-P-26 (2023/06/10) plot Full transit with scatter 1.1 mmag  
WASP-19 (2023/06/05) plot Full transit with scatter 0.90 mmag Published
Qatar-2 (2023/06/03) plot Full transit with scatter 1.0 mmag  
HATS-18 (2023/06/02) plot Full transit with scatter 1.3 mmag  
WASP-43 (2023/05/31) plot Full transit with scatter 0.48 mmag (again!)  
HAT-P-26 (2023/05/24) plot Full transit with scatter 0.48 mmag (nice!)  
WASP-19 (2023/05/21) plot Full transit with scatter 1.2 mmag due to some cloud Published
K2-31 (2023/05/19) plot Cloud-affected transit with scatter 2.9 mmag  
WASP-43 (2023/05/18) plot Cloud-affected transit with gaps and scatter 1.2 mmag  
WASP-43 (2023/05/13) plot Full transit with scatter 0.74 mmag  
HATS-18 (2023/05/12) plot Full transit with scatter 1.2 mmag  

 

Transits observed during the 2022 season

WASP-5 (2022/10/13) plot Transit lost due to telescope pointing problems  
WASP-4 (2022/10/11) plot Full transit with scatter 1.5 mmag due to cloud near end Published
NGTS-6 (2022/10/10) plot Full transit with scatter 1.5 mmag Publishedd
WASP-5 (2022/09/30) plot Full transit with scatter 0.91 mmag and possible starspot  
NGTS-10 (2022/09/21) plot Full transit with scatter 0.86 mmag Published
WASP-4 (2022/09/21) plot Full transit with scatter 0.94 mmag Published
WASP-18 (2022/09/20) plot Full transit with scatter 0.89 mmag  
HIP 65 (2022/09/20) plot Full transit with scatter 0.89 mmag Published
HIP 65 (2022/09/15) plot Full transit with scatter 0.77 mmag Published
HIP 65 (2022/09/14) plot Half a transit due to technical issue Published
WASP-5 (2022/09/12) plot Good transit with scatter 0.64 mmag  
NGTS-10 (2022/09/11) plot Full transit with scatter 1.7 mmag Published
WASP-18 (2022/09/05) plot Full transit with scatter 0.61 mmag  
WASP-173 (2022/09/04) plot Full transit with scatter 1.8 mmag (0.8 mmag binned ×5) Published
WASP-5 (2022/08/30) plot Excellent transit with scatter 0.58 mmag  
WASP-173 (2022/07/05) plot Full transit with scatter 1.4 mmag Published
WASP-103 (2022/07/04) plot Full transit with scatter 0.75 mmag under analysis
WASP-145 (2022/07/03) plot Full transit with scatter 1.0 mmag  
HAT-P-26 (2022/07/02) plot Full transit with some systematics  
WASP-5 (2022/06/29) no plot Transit lost due to telescope motion  
Qatar-2 (2022/06/27) plot Full transit (just) but some cloud (scatter 1.2 mmag)  
Qatar-2 (2022/06/19) plot Full transit but some cloud (scatter 2.0 mmag)  
HATS-18 (2022/06/16) plot Full transit with scatter 1.5 mmag  
HAT-P-26 (2022/06/15) plot Full transit with scatter 0.78 mmag  
HATS-18 (2022/06/11) plot Full transit with scatter 1.4 mmag  
WASP-145 (2022/06/10) plot Full transit with scatter 1.3 mmag  
WASP-19 (2022/06/08) plot Full transit with scatter 0.82 mmag Published
Qatar-2 (2022/06/07) plot Almost the full transit with scatter 1.1 mmag  
K2-31 (2022/06/06) plot Full transit with scatter 0.81 mmag  
HATS-18 (2022/05/26) plot Scatter 1.2 mmag. Missed end of transit due to planning error (sorry).  
WASP-43 (2022/05/25) plot Full transit with excellent scatter 0.76 mmag  
K2-31 (2022/05/23) plot Full transit with excellent scatter 0.64 mmag  
WASP-43 (2022/05/21) plot Full transit with excellent scatter 0.67 mmag  
WASP-19 (2022/05/20) plot Cloudy transit with scatter 1.3 mmag Published
HATS-2 (2022/05/13) plot Half a transit due to technical issues  

 

Transits observed during the 2021 season

WASP-4 (2021/10/16) plot Good transit with scatter 0.90 mmag Published
WASP-4 (2021/10/12) plot Good transit with scatter 1.3 mmag and a starspot Published
WASP-5 (2021/10/10) plot Good at start but cloudy at end - scatter 1.6 mmag  
WASP-5 (2021/10/05) plot Good transit with scatter 0.81 mmag  
WASP-4 (2021/10/04) plot Good transit with scatter 1.4 mmag, a starspot and some red noise Published
WASP-18 (2021/10/02) plot Good transit with scatter 0.76 mmag  
NGTS-6 (2021/10/01) plot Transit detected (scatter 2.3 mmag) Published
WASP-4 (2021/09/30) plot Transit lost due to high winds  
WASP-173 (2021/09/28) plot Excellent transit with scatter 1.0 mmag after binning by x5 Published
WASP-5 (2021/09/27) plot Excellent transit with scatter 0.75 mmag  
WASP-4 (2021/09/26) plot Excellent transit with scatter 0.78 mmag Published
TOI-4184 (2021/09/25) plot Transit possibly detected but some computer problems Published
NGTS-6 (2021/09/24) plot Transit detected (scatter 2.2 mmag) Published
WASP-4 (2021/09/22) plot Excellent transit with a starspot (scatter 1.3 mmag) Published
HIP 65 (2021/09/21) plot OK transit with scatter 1.1 mmag Published
TOI-4184 (2021/09/15) plot Transit possibly detected Published
HIP 65 (2021/09/19) plot OK transit with scatter 0.93 mmag Published
WASP-4 (2021/09/18) plot Unreliable due to clouds (scatter 4.7 mmag) Published
WASP-18 (2021/09/17) plot Excellent transit with scatter 0.52 mmag  
TOI-4184 (2021/09/15) plot Transit detected with scatter 3.4 mmag Published
WASP-4 (2021/09/14) plot Good transit with scatter 1.4 mmag and a starspot Published
WASP-4 (2021/09/10) plot Transit not observed due to poor weather  
WASP-5 (2021/09/09) plot Good transit with scatter 0.74 mmag  
WASP-5 (2021/08/27) plot Good transit, after removal of two bits of broken data  
WASP-5 (2021/08/09) plot Good transit with scatter 0.78 mmag  
WASP-4 (2021/08/06) plot Good transit with scatter 0.79 mmag Published
WASP-19 (2021/06/16) plot Good transit with scatter 1.0 mmag Published
WASP-145 (2021/06/16) plot Thick cloud: data scatter too much to detect transit  
Qatar-2 (2021/06/15) plot Thin clouds but still a good transit observation with scatter 1.4 mmag  
HATS-18 (2021/06/14) plot Clouds caused a scatter of 2.5 mmag Published
HATS-18 (2021/06/09) plot Full transit with scatter 1.4 mmag Published
WASP-43 (2021/06/06) plot Good transit with scatter 0.74 mmag  
HATS-18 (2021/06/04) plot Full transit with scatter 1.8 mmag Published
CoRoT-33 (2021/05/29) plot Transit not clearly detected  
WASP-43 (2021/05/28) plot Good transit with scatter 1.1 mmag  
HATS-2 (2021/05/26) plot Good transit with scatter 0.84 mmag  
HATS-18 (2021/05/24) plot Full transit with scatter 1.5 mmag Published
WASP-19 (2021/05/23) plot Good transit with scatter 0.66 mmag Published
HATS-18 (2021/05/14) plot Good transit with scatter 1.1 mmag Published

 

Transits observed during the 2019 season

NGTS-6 (2019/09/14) plot Full transit with scatter 1.4 mmag Published
WASP-5 (2019/09/12) plot Full transit with scatter 0.69 mmag despite clouds  
WASP-145 (2019/09/11) plot Full transit with scatter 0.9 mmag (when binned ×3)  
NGTS-6 (2019/09/06) plot Full transit with scatter 1.8 mmag Published
WASP-88 (2019/09/01) plot Partial transit with scatter 0.71 mmag despite some cloud  
WASP-5 (2019/08/30) plot Full transit with scatter 0.61 mmag  
WASP-4 (2019/08/29) plot Full transit with scatter 0.77 mmag Published
WASP-88 (2019/08/27) plot Partial transit with scatter 0.76 mmag despite some cloud  
WASP-4 (2019/08/25) plot Full transit with scatter 0.94 mmag despite cloud Published
NGTS-6 (2019/08/22) plot Full transit with scatter 2.6 mmag Published
WASP-4 (2019/08/21) plot Full transit with scatter 1.1 mmag Published
WASP-4 (2019/08/17) plot Full transit with scatter 1.1 mmag Published
NGTS-6 (2019/08/15) plot Full transit but large scatter of 3 mmag Published
WASP-164 (2019/08/14) plot Full transit but killed by cloudy weather  
WASP-4 (2019/08/13) plot Full transit with scatter 1.6 mmag despite 1 mag of cloud Published
WASP-5 (2019/08/12) plot Full transit with scatter 1.0 mmag and some cloud in the second half  
WASP-4 (2019/08/09) plot Full transit with scatter 0.8 mmag Published
NGTS-6 (2019/08/07) plot Transit not detected due to cloudy conditions  
WASP-4 (2019/08/05) plot Full transit with scatter 0.97 mmag Published
WASP-4 (2019/08/01) plot Full transit with scatter 1.3 mmag Published
WASP-5 (2019/07/30) plot Full transit with scatter 0.89 mmag  
WASP-4 (2019/07/28) plot Full transit with scatter 1.1 mmag Published
WASP-4 (2019/07/24) plot Full transit with scatter 1.1 mmag Published
WASP-4 (2019/07/20) plot Transit observed but clouds too thick to get good data  
WASP-4 (2019/07/16) plot Full transit with scatter 1.8 mmag Published
WASP-43 (2019/06/22) plot Full transit with scatter 0.98 mmag  
WASP-19 (2019/06/13) plot Full transit with scatter 0.91 mmag Published
WASP-88 (2019/06/09) plot Scatter 0.49 mmag  
HATS-2 (2019/06/07) plot Full transit with scatter 1.1 mmag despite some cloud  
WASP-88 (2019/06/04) plot Scatter 0.77 mmag despite some cloud  
WASP-19 (2019/06/02) plot Full transit with scatter 0.71 mmag Published
HATS-18 (2019/06/02) plot Full transit with scatter 1.2 mmag Published
HATS-2 (2019/05/23) plot Full transit with scatter 1.2 mmag despite some cloud  
HATS-18 (2019/05/22) plot Full transit with scatter 1.2 mmag Published
HATS-2 (2019/05/19) plot Cloud conditions: scatter 3.6 mmag  
HATS-18 (2019/05/16) plot Full transit with scatter 1.4 mmag Published
WASP-19 (2019/05/14) plot Full transit with scatter 0.71 mmag Published
WASP-19 (2019/05/10) plot Full transit with scatter 0.86 mmag Published
WASP-43 (2019/05/09) plot Full transit with scatter 0.88 mmag  

 

Transits observed during the 2018 season

WASP-5 (2018/09/22) plot Full transit (scatter 0.76 mmag) but some red noise due to dodgy column  
WASP-91 (2018/09/17) plot Scatter 1.3 mmag due to slight cloud  
WASP-75 (2018/09/16) plot Scatter 0.62 mmag even with increasing airmass  
WASP-95 (2018/09/14) plot Scatter 0.56 mmag until the clouds came in....  
WASP-156 (2018/09/13) plot Complete transit with scatter 0.82 mmag  
HATS-13 (2018/09/11) plot Complete transit but scatter 2.1 mmag due to clouds  
WASP-5 (2018/09/09) plot Lovely transit with scatter 0.61 mmag  
WASP-139 (2018/09/07) plot Complete transit but scatter 1.3 mmag  
HATS-46 (2018/09/05) plot Failure due to focus error and early finish  
WASP-4 (2018/08/26) plot Nice transit with scatter 0.74 mmag Published
WASP-5 (2018/08/22) plot Failure due to cloudy conditions  
WASP-91 (2018/08/20) plot Failure due to cloud and pointing problems  
WASP-4 (2018/08/18) plot Nice transit with scatter 1.0 mmag despite some cloud Published
HATS-46 (2018/08/17) plot Failure due to cloudy conditions  
WASP-4 (2018/08/14) plot Nice transit with scatter 0.77 mmag despite cloud during ingress Published
HATS-34 (2018/07/21) plot Scatter 1.6 mmag due to cloudy conditions  
WASP-19 (2018/06/27) plot Partial transit with scatter 0.71 mmag Published
HATS-2 (2018/06/24) plot Full transit with scatter 1.1 mmag despite some clouds  
WASP-174 (2018/06/21) plot Scatter 1.0 mmag (too much defocus)  
HATS-18 (2018/06/20) plot Scatter 1.4 mmag despite some clouds Published
WASP-19 (2018/06/12) plot Full transit with scatter 0.58 mmag Published
HATS-2 (2018/06/05) plot Full transit with scatter 1.1 mmag despite cloudy conditions  
WASP-174 (2018/06/04) plot Full transit with scatter 0.64 mmag  
HATS-18 (2018/05/25) plot Scatter 2.4 mmag (low sky transparency?) Published
HATS-18 (2018/05/20) plot Full transit with scatter 1.3 mmag Published
WASP-174 (2018/05/18) plot Clouds and finder chart error meant target star saturated  
HATS-2 (2018/05/17) plot Full transit with scatter 1.3 mmag and starspot  
HATS-22 (2018/05/15) plot Full transit with scatter 1.1 mmag  
HATS-52 (2018/05/11) plot Full transit with scatter 1.2 mmag  
WASP-19 (2018/05/05) plot Full transit with scatter 0.77 mmag Published
HATS-18 (2018/05/04) plot Full transit with scatter 1.2 mmag Published
WASP-19 (2018/05/02) plot Full transit with scatter 0.68 mmag Published
HATS-18 (2018/04/29) plot Full transit with scatter 1.3 mmag Published
WASP-19 (2018/04/28) plot Full transit with scatter 1.2 mmag (some cloud) Published
HATS-52 (2018/04/26) plot Full transit with scatter 1.4 mmag (some cloud)  
HATS-18 (2018/04/24) plot Full transit with scatter 1.1 mmag Published

 

Transits observed during the 2017 season

WASP-32 (2017/09/16) plot Full transit with scatter 0.77 mmag and possible starspot  
WASP-74 (2017/09/10) plot Wrong target observed (WASP-4, no transit)  
WASP-5 (2017/09/06) plot Full transit with scatter 0.71 mmag  
WASP-4 (2017/08/31) plot Transit lost to clouds  
WASP-4 (2017/08/27) plot Full transit with scatter 0.82 mmag Published
WASP-74 (2017/08/26) plot Full transit with scatter 2.3 mmag in the U band Published
WASP-91 (2017/08/24) plot Full transit with scatter 0.79 mmag  
WASP-96 (2017/08/21) plot Full transit with scatter 0.91 mmag  
WASP-5 (2017/08/19) plot Partial transit with scatter 0.91 mmag  
WASP-4 (2017/08/07) plot Full transit with scatter 0.98 mmag despite significant cloud Published
WASP-5 (2017/08/06) plot Full transit with scatter 0.78 mmag despite some cloud  
WASP-75 (2017/08/02) plot Full transit with scatter 0.75 mmag  
HATS-32 (2017/08/01) plot Full transit but scatter 1.5 mmag due to 3-4 arcsec seeing!  
WASP-32 (2017/07/29) plot Full transit with scatter 1.0 mmag despite a lot of thin cloud  
HATS-2 (2017/07/11) plot Full transit with scatter 1.1 mmag  
HATS-18 (2017/07/09) plot Full transit with scatter 1.2 mmag Published
WASP-81 (2017/07/01) plot Full transit with scatter 1.1 mmag  
HATS-18 (2017/06/19) plot Full transit with scatter 1.2 mmag Published
HATS-18 (2017/06/13) plot Full transit but scatter 1.8 mmag due to cloud Published
WASP-19 (2017/06/11) plot Good transit with scatter 0.77 mmag and a starspot Published
HATS-22 (2017/06/09) plot Full transit with scatter 0.99 mmag  
HATS-18 (2017/06/08) plot Most of a transit with scatter 1.6 mmag Published
HATS-2 (2017/05/30) plot Full transit with scatter 0.87 mmag  
HATS-18 (2017/05/28) plot Full transit with scatter 0.78 mmag Published
WASP-19 (2017/05/27) plot Most of a transit with scatter 0.55 mmag Published
WASP-19 (2017/05/19)
Wrong field observed (observer error)  
WASP-54 (2017/05/15) plot Partial transit due to bad weather  
HATS-18 (2017/05/12) plot Partial transit due to bad weather Published
WASP-19 (2017/05/08) plot Good transit with scatter 0.74 mmag Published

 

Transits observed during the 2016 season

WASP-95 (2016/08/30) plot Good transit with scatter 0.70 mmag despite some clouds  
WASP-5 (2016/08/29) plot Decent transit with scatter 0.87 mmag  
WASP-4 (2016/08/28) plot Transit lost to high winds  
HATS-34 (2016/08/25) plot Decent transit with scatter 1.0 mmag  
WASP-4 (2016/08/24) plot Decent transit with scatter 0.93 mmag Published
WASP-29 (2016/08/21) plot Lovely transit with scatter 0.66 mmag  
WASP-4 (2016/08/20) plot Decent transit with scatter 0.85 mmag Published
WASP-95 (2016/08/19) plot Decent transit with scatter 0.86 mmag  
WASP-5 (2016/08/16) plot Nice transit with scatter 0.70 mmag  
WASP-32 (2016/08/15) plot Lovely transit with scatter 0.46 mmag  
HATS-13 (2016/08/14) plot OK transit with scatter 1.4 mmag  
WASP-4 (2016/08/12) plot Lovely transit with scatter 0.64 mmag Published
WASP-28 (2016/08/10) plot Full transit observed but cloud caused a large 1.1 mmag scatter  
WASP-75 (2016/07/18) plot Large 1.2 mmag scatter and missed ingress due to cloud  
WASP-74 (2016/07/05) plot Transit in the U band to complement GROND griz data Published
WASP-19 (2016/06/21) plot Excellent transit with scatter 0.65 mmag Published
WASP-19 (2016/06/06) plot Good transit with scatter 0.80 mmag Published
HATS-2 (2016/05/25) plot Transit lost to cloud  
HATS-2 (2016/05/09) plot Transit lost to cloud  
WASP-19 (2016/05/07) plot Good transit with scatter 0.66 mmag after removing cloud-affected data Published
HATS-2 (2016/05/05) plot Transit lost to cloud  
WASP-19 (2016/05/03) plot Good transit until cloud appeared Published
WASP-19 (2016/04/29) plot Excellent transit with scatter 0.57 mmag Published
WASP-19 (2016/04/26) plot Excellent transit with scatter 0.67 mmag Published
WASP-19 (2016/04/22) plot Transit lost to cloud  
HATS-2 (2016/04/16) plot Excellent transit with scatter 0.83 mmag and a starspot  

 

Transits observed during the 2015 season

WASP-5 (2015/09/27) plot Excellent transit with scatter 0.62 mmag  
WASP-74 (2015/09/27) plot Scatter 0.65 mmag for data binned by a factor of 5 (cadence 105s) Published
WASP-32 (2015/09/13) plot Transit lost to cloud  
WASP-74 (2015/09/12) plot Scatter 0.60 mmag for data binned by a factor of 5 (cadence 135s) Published
WASP-22 (2015/09/04) plot Good transit with scatter 1.1 mmag on a 40s cadence Published
WASP-4 (2015/08/30) plot Good transit with scatter 0.91 mmag Published
WASP-74 (2015/08/28) plot Scatter 0.69 mmag but cloud ruined the last part of the transit Published
WASP-5 (2015/08/27) plot Cloudy transit with scatter 1.3mmag  
WASP-4 (2015/08/26) plot Good transit with scatter 0.88 mmag Published
WASP-4 (2015/08/22) plot Excellent transit with scatter 0.61 mmag Published
WASP-74 (2015/07/14) plot Excellent transit with scatter 0.49 mmag Published
WASP-74 (2015/06/29) plot Good transit with scatter 0.75 mmag Published
WASP-74 (2015/06/14) plot Good transit with scatter 0.69 mmag Published
WASP-19 (2015/06/06) plot Good transit with scatter 0.74 mmag and a starspot Published
WASP-19 (2015/06/02) plot First half good, second half cloud-affected Published
WASP-74 (2015/05/30) plot Excellent transit with scatter 0.39 mmag - the best ever with DFOSC Published
WASP-19 (2015/05/22) plot Scattered transit (3.0 mmag) due to cloud and large defocus Published
WASP-19 (2015/05/18) plot Excellent transit with scatter 0.60 mmag and a starspot Published
WASP-41 (2015/05/16) plot Excellent transit with scatter 0.66 mmag and starspots Published
WASP-41 (2015/05/13) plot Excellent transit with scatter 0.64 mmag and a starspot Published
WASP-41 (2015/05/10) plot Excellent transit with scatter 0.63 mmag and starspots Published
WASP-19 (2015/05/07) plot Excellent transit with scatter 0.62 mmag and a starspot Published
WASP-19 (2015/05/03) plot Excellent transit with scatter 0.53 mmag and a starspot Published
WASP-19 (2015/04/29) plot Good transit with scatter 0.84 mmag Published
WASP-55 (2015/04/22) plot Good transit with scatter 0.94 mmag Published

 

Transits observed during the 2014 season

WASP-5 (2014/09/24) plot Excellent transit with scatter 0.59 mmag  
WASP-29 (2014/09/15) plot Good transit with scatter 0.62 mmag  
WASP-5 (2014/09/06) plot Good transit with scatter 0.68 mmag  
WASP-52 (2014/09/03) plot Half a transit with scatter 1.0 mmag due to DFOSC problems Published
WASP-52 (2014/08/20) plot Good transit with scatter 0.80 mmag and spot activity Published
WASP-52 (2014/08/06) plot Excellent transit with scatter 0.66 mmag and a starspot again Published
WASP-52 (2014/07/23) plot Excellent transit with scatter 0.50 mmag and a starspot Published
WASP-103 (2014/07/18) plot Excellent transit with scatter 0.59 mmag Published
WASP-103 (2014/07/17) plot Good transit with scatter 0.72 mmag Published
WASP-103 (2014/07/05) plot Good transit with scatter 0.66 mmag Published
WASP-57 (2014/06/24) plot Excellent transit with scatter 0.71 mmag, simultaneous with GROND Published
WASP-103 (2014/06/23) plot Good transit with scatter 0.62 mmag Published
WASP-103 (2014/06/22) plot Large scatter of 1.3 mmag due to cloud Published
WASP-55 (2014/06/18) plot Decent transit with scatter 1.1 mmag Published
Qatar-2 (2014/06/14) plot Good transit with scatter 1.2 mmag  
WASP-103 (2014/06/09) plot Transit lost to cloud
WASP-103 (2014/06/08) plot Good transit with scatter 1.1 mmag Published
Qatar-2 (2014/06/02) plot Good transit with scatter 1.1 mmag  
WASP-41 (2014/05/30) plot Excellent transit with scatter 0.59 mmag, simultaneous with GROND Published
Qatar-2 (2014/05/25) plot Partial transit due to high wind, with scatter 1.13 mmag  
WASP-57 (2014/05/18) plot Excellent transit with scatter 0.73 mmag Published
Qatar-2 (2014/05/17) plot Good transit with scatter 0.97 mmag  
Qatar-2 (2014/05/13) plot Scatter 2 mmag and gaps due to cloud  
OGLE-TR-56 (2014/05/08) plot LI observations too scattered to be useful Published
WASP-103 (2014/05/01) plot Good transit with scatter 0.82 mmag Published
WASP-103 (2014/04/19) plot Excellent transit with scatter 0.66 mmag Published
Qatar-2 (2014/04/16) Wrong time (observer error)

 

Transits observed during the 2013 season

WASP-29 (2013/09/27) plot Excellent transit with scatter 0.50 mmag  
WASP-22 (2013/09/24) plot Nice transit with scatter 0.95 mmag Published
WASP-26 (2013/09/12) plot Nice transit with scatter 1.1 mmag despite texp only 30s Published
WASP-8 (2013/09/11) plot OK transit with scatter 1.5 mmag despite texp only 30s  
WASP-26 (2013/09/01) plot Nice transit with scatter 0.78 mmag Published
WASP-46 (2013/08/28) plot Nice transit with scatter 0.85 mmag Published
WASP-7 (2013/08/26) plot More data exist (after pier flip) but will need special attention  
WASP-26 (2013/08/21) plot Nice transit with scatter 0.68 mmag Published
WASP-30 (2013/08/18) plot Excellent transit with scatter 0.52 mmag  
WASP-46 (2013/08/05) plot Nice transit with scatter 0.83 mmag Published
WASP-45 (2013/07/23) plot Nice transit with scatter 0.75 mmag Published
WASP-42 (2013/06/28) plot Larger scatter (1.0 mmag) due to cloud Published
WASP-67 (2013/06/21) plot Excellent transit with scatter 0.48 mmag Published
WASP-42 (2013/06/18) plot Lovely transit with scatter 0.54 mmag Published
WASP-80 (2013/06/15) plot Absolutely lovely transit with scatter 0.51 mmag Published
Qatar-2 (2013/06/10) plot Nice transit with scatter 0.91 mmag  
WASP-25 (2013/06/05) plot Lovely transit with scatter 0.72 mmag Published
WASP-24 (2013/06/04) plot Decent transit with scatter 1.2 mmag Published
Qatar-2 (2013/05/29) plot Nice transit with scatter 0.89 mmag and a possible starspot  
WASP-24 (2013/05/28) plot Decent transit with scatter 1.1 mmag Published
Qatar-2 (2013/05/25) plot Nice transit with scatter 0.82 mmag  
WASP-42 (2013/05/24) plot Lovely transit with scatter 0.66 mmag Published
WASP-24 (2013/05/21) plot Partial transit with scatter 0.9 mmag Published
WASP-55 (2013/05/03) plot OK transit with scatter 1.1 mmag Published
WASP-25 (2013/05/02) plot Nice transit with scatter 1.1 mmag Published

 

Transits observed during the 2012 season

WASP-46 (2012/09/23) plot Large scatter due to cloud Published
WASP-28 (2012/09/22) plot Second half of transit affected by cloud  
WASP-22 (2012/09/18) plot Decent transit with scatter 0.78 mmag Published
WASP-26 (2012/09/16) plot Decent transit with scatter 1.3 mmag (some data lost to cloud) Published
WASP-45 (2012/09/01) plot Lovely transit with scatter 0.57 mmag Published
WASP-28 (2012/08/12) plot Part of transit lost to cloud  
Qatar-2 (2012/06/22) plot Nice transit with scatter 0.77 mmag  
Qatar-2 (2012/06/14) plot Nice transit with scatter 0.97 mmag  
Qatar-2 (2012/06/06) plot Nice transit with scatter 0.88 mmag  

 

Transits observed during the 2011 season

WASP-29 (2011/08/24) plot Transit lost to cloud
WASP-4 (2011/08/11) plot Decent transit with possible star spot (scatter of 1.26 mmag) Published
WASP-4 (2011/08/03) plot Decent transit with possible star spot (scatter of 1.18 mmag) Published
WASP-7 (2011/07/25) plot Decent transit with lots of data (scatter of 0.71 mmag)  
WASP-16 (2011/07/01) plot Nice transit (scatter of 0.67 mmag) Published
WASP-24 (2011/06/28) plot Could be better, but useful (scatter 1.0 mmag) Published
WASP-17 (2011/06/26) plot Very nice transit, no clear star spot (scatter 0.48 mmag) Published
HAT-P-27 (2011/06/22) plot Missed transit (Ephemeris error by Tobias, Sorry!)
WASP-17 (2011/06/11) plot very nice transit with scatter 0.53 mmag Published
WASP-19 occultation (2011/06/08) plot Occultation not visible (scatter 1.2 mmag) Published
GJ-1214 (2011/06/02) plot DFOSC, few pre-ingress data (scatter 1.3 mmag) Published
WASP-17 (2011/05/27) plot Nice ingress (scatter 0.76 mmag) but then lost to cloud Published
WASP-19 transit (2011/05/26) plot Scatter (0.97 mmag), but useful Published
WASP-19 occultation (2011/05/24) plot Occultation not visible (1 mmag) Published
WASP-19 transit (2011/05/22) plot Decent scatter (1.7mmag) Published
WASP-19 occultation (2011/05/13) plot Scatter of 0.95 mmag. Occultation not visible to eye Published
WASP-16 (2011/05/12) plot Nice transit (scatter 0.59 mmag) Published
WASP-19 transit (2011/05/11) plot decent scatter (1.0 mmag) Published
WASP-19 transit (2011/05/07) plot scattered data (2.0 mmag) Published
WASP-24 (2011/05/05) plot Scatter of 2.3 mmag. 2nd half/egress lost to cloud Published
WASP-17 (2011/04/27) plot very nice transit with scatter 0.56 mmag Published

 

Transits observed during the 2010 season

WASP-30 (2010/09/19) plot scatter only 0.64 mmag but a difficult object  
WASP-29 (2010/09/09) plot problem with the data in mid-transit  
WASP-7 (2010/09/06) plot Mostly decent data, with scatter 0.70 mmag Published
WASP-29 (2010/09/05) plot Very nice transit observation, with scatter 0.55 mmag  
WASP-5 (2010/08/26) plot Very nice transit observation, with scatter 0.59 mmag  
GJ 1214 (2010/08/20) plot Nice transit observation, with scatter 1.2 mmag Published
WASP-28 (2010/08/17) plot Very nice transit observation, with scatter 0.75 mmag  
WASP-5 (2010/08/09) plot Transit lost to cloud
WASP-18 occultation (2010/08/03) plot Scatter 0.83 mmag but occultation not visible to naked eye  
GJ 1214 (2010/08/01) plot Scatter of 1mmag but plenty of data Published
WASP-6 (2010/07/31) plot Lovely transit observation, with scatter 0.64 mmag Published
WASP-18 transit (2010/07/27) plot Very nice data (scatter 0.46 mmag) but ephemeris is wrong  
GJ 1214 (2010/07/13) plot Scatter of 1mmag but plenty of data Published
GJ 1214 (2010/07/05) plot Decent scatter (0.9 mmag) but Texp too long (150s) Published
WASP-16 (2010/06/28) plot More scattered than expected (1.3 mmag) Published
WASP-19 transit (2010/06/20) plot Scattered (2mmag) but still useful Published
WASP-24 (2010/06/16) plot very nice transit with scatter 0.47 mmag! Published
WASP-25 (2010/06/13) plot Scatter of 0.7 mmag. Lost second half to cloud. Published
WASP-15 (2010/06/09) plot nice data (scatter 0.49 mmag) but only partial coverage. Published
WASP-19 transit (2010/06/05) plot decent data (scatter 0.85 mmag). Autoguiding jumped. Published
WASP-19 transit (2010/06/01) plot Scatter of 1 mmag. Lost second half to cloud. Published
WASP-19 occultation (2010/05/23) plot Scatter of 1 mmag. Occultation is not visible to the eye Published
WASP-19 transit (2010/05/21) plot Transit lost to cloud
WASP-19 transit (2010/05/17) plot decent data (scatter 0.96 mmag). No autoguiding. Published
WASP-17 (2010/05/11) plot insufficient data outside transit
WASP-16 (2010/05/09) plot nice transit (scatter 0.54 mmag) Published
WASP-19 occultation (2010/05/08) plot covers only part of the occultation Published

 

Transits observed during the 2009 season

WASP-5 (2009/09/18) plot very nice transit observation (scatter 0.7 mmag)  
WASP-18 (2009/09/11) plot gets half the transit (scatter 0.5 mmag) Published
WASP-18 (2009/09/10) plot very nice (scatter 0.6 mmag)
Published
WASP-18 (2009/09/09) plot excellent (scatter 0.5 mmag!) Published
WASP-18 (2009/09/08) plot nice transit (scatter 0.7 mmag) Published
WASP-18 (2009/09/07) plot useful data on a difficult object (scatter 0.8 mmag) Published
WASP-5 (2009/09/05) plot cloudy night, no good for astronomy
WASP-6 (2009/08/02) plot we found another starspot! Nice data (0.6 mmag scatter) Published
WASP-4 (2009/08/25) plot nice transit observation Published
WASP-2 (2009/08/23) plot nice dataset with a 0.55 mmag scatter Published
WASP-4 (2009/08/13) plot Transit lost to cloud
WASP-2 (2009/08/10) plot killed by cloud in the middle of the transit
WASP-6 (2009/08/02) plot we found a starspot! Large scatter (1.2mmag) due to full moon Published
WASP-5 (2009/07/18) plot nice light curve with 0.7 mmag scatter  
WASP-5 (2009/07/05) plot nice dataset with 0.6 mmag scatter  
WASP-6 (2009/06/26) plot Decent but could be better. New finder chart made Published
WASP-7 (2009/06/12) plot not good (probably background too high)  
WASP-7 (2009/06/07) plot not good (probably background too high)  
WASP-2 (2009/06/02) plot lovely dataset with a record 0.46 mmag scatter! Published

 

Transits observed during the 2008 season

WASP-4 (2008/10/01) plot Good dataset (scatter 0.84 mmag) Published
WASP-4 (2008/09/26) plot Wrong time (observer error)
WASP-4 (2008/09/22) plot Good dataset (scatter 0.88 mmag) Published
WASP-5 (2008/09/20) plot Reasonable dataset (scatter 0.59 mmag) Published
WASP-5 (2008/08/28) plot Excellent dataset (scatter 0.50 mmag) Published
WASP-4 (2008/08/22) plot Reasonable dataset (scatter 0.75 mmag) Published
WASP-4 (2008/08/19) plot Good dataset (scatter 0.84 mmag) Published

 

 

Presentations

I have given a few presentations about the MiNDSTEp transit project in the past. The slides are available here for reference.
Presentation at the Qatar conference, November 2011 (PDF file, 4.0MB)
Presentation at the Heidelberg conference, March 2014 (PDF file, 5.2MB)
Online presentation for new observers, April 2026 (PPTX file, 3.0MB)

 

Publications

Rajkumar A. R., B ayo A., Peng P., et al., 2026 A&A, in press.
Long-term monitoring of WASP-19 b: Signs of apsidal precession and molecular signatures
preprint (arXiv:2603.12395)   —  

Griffiths A. W., Southworth J., Alegre L., et al., 2026, MNRAS, 545, staf2057.
A search for transit timing variations in the transiting hot Jupiter systems HIP 65, NGTS-6, NGTS-10 and WASP-173
pdf file preprint (arXiv:2511.14634)   —   ADS abstract   —  

Bastürk, Ö, Kutluay A. C., Barker A., Yalçinkaya S., Southworth J., et al., 2025, MNRAS, 541, 714.
The orbit of WASP-4b is in decay
Published paper   —   preprint (arXiv:2506.15022) ADS (2025MNRAS.541..714B)

Biagiotti F., Mancini L., Southworth J., et al., 2024, A&A, 685, A131.
Star-spot activity, orbital obliquity, transmission spectrum, physical properties and TTVs of the HATS-2 planetary system
Published paper   —   preprint (arXiv:2403.04476)   —   ADS (2024A+A...685A.131B)

Barkaoui K., Timmermans M., Soubkiou B. V., et al., 2023, A&A, 677, A38.
TOI-2084b and TOI-4184b: two new sub-Neptunes around M-dwarf stars
Published paper   —   preprint (arXiv:2306.15095)   —   ADS (2023A+A...677A..38B)

Southworth J., Mancini L., Dominik M., et al., 2022, The Observatory, 142, 220.
VLT, GROND and Danish Telescope observations of transits in the TRAPPIST-1 system
preprint (arXiv:2207.05874)   —   ADS (2022Obs...142..220S)

Southworth J., Barker A. J., Hinse T. C., et al., 2022, MNRAS, 515, 3212.
A search for transit timing variations in the HATS-18 planetary system
Published paper   —   preprint (arXiv:2207.05873)   —   ADS (2022MNRAS.515.3212S)

Southworth J., Dominik M., Jørgensen U. G., et al., 2019, MNRAS, 490, 4203.
Transit timing variations in the WASP-4 planetary system
Published paper   —   preprint (arXiv:1907.08269)   —   ADS (2019MNRAS.490.4230S)

Mancini L., Southworth J., Mollière P., et al., 2019, MNRAS, 485, 5168.
Physical properties and transmission spectrum of the WASP-74 planetary system from multi-band photometry
Published paper   —   preprint (arXiv:1903.02800)   —   ADS (2019MNRAS.485.5168M)

Mancini L., Southworth J., Raia G., et al., 2017, MNRAS, 465, 843.
Orbital alignment and starspot properties in the WASP-52 planetary system
Published paper   —   preprint (arXiv:1608.02001)   —   ADS (2017MNRAS.465..843M)

Southworth J., Evans D. F., 2016, MNRAS, 463, 37.
Contamination from a nearby star cannot explain the anomalous transmission spectrum of the ultra-short period giant planet WASP-103b
preprint (arXiv:1608.00746)   —   ADS (2016MNRAS.463...37S)

Southworth J., Tregloan-Reed J., Andersen M. I., et al., 2016, MNRAS, 457, 4205.
High-precision photometry by telescope defocussing. VIII. WASP-22, WASP-41, WASP-42 and WASP-55
original manuscript   —   preprint (arXiv:1512.05549)   —   ADS (2016MNRAS.457.4205S)

Ciceri S., Mancini L., Southworth J., et al., 2016, MNRAS, 456, 990.
Physical properties of the planetary systems WASP-45 and WASP-46 from simultaneous multi-band photometry
Published paper   —   preprint (arXiv:1511.05171)   —   ADS (2016MNRAS.456..990C)

Southworth J., Mancini L., Tregloan-Reed J., et al., 2015, MNRAS, 454, 3094.
Larger and faster: revised properties and a shorter orbital period for the WASP-57 planetary system from a pro-am collaboration
original manuscript   —   preprint (arXiv:1509.05609)   —   ADS (2015MNRAS.454.3094S)

Tregloan-Reed J., Southworth J., Burgdorf M., et al., 2015, MNRAS, 450, 1760.
Transits and starspots in the WASP-6 planetary system
Published paper   —   preprint (arXiv:1503.09184)   —   ADS (2015MNRAS.450.1760T)

Southworth J., Mancini L., Ciceri S., et al., 2015, MNRAS, 447, 711.
High-precision photometry by telescope defocussing. VII. The ultra-short period planet WASP-103
original manuscript   —   preprint (arXiv:1411.2767)   —   ADS (2015MNRAS.447..711S)

Southworth J., Hinse T. C., Burgdorf M., et al., 2014, MNRAS, 444, 776.
High-precision photometry by telescope defocussing. VI. WASP-24, WASP-25 and WASP-26
original manuscript   —   preprint (arXiv:1407.6253)   —   ADS (2014MNRAS.444..776S)

Mancini L., Southworth J., Ciceri S., et al., 2014, A&A, 568, A127.
Physical properties of the WASP-67 planetary system from multi-colour photometry
Published paper   —   preprint (arXiv:1406.7448)   —   ADS (2014A+A...568A.127M)

Mancini L., Southworth J., Ciceri S., et al., 2014, A&A, 562, A126.
Physical properties, transmission and emission spectra of the WASP-80 planetary system from multi-colour photometry
Published paper   —   preprint (arXiv:1312.4982)   —   ADS (2014A+A...562A.126M)

Mancini L., Ciceri S., Chen G., et al., 2013, MNRAS, 436, 2.
Physical properties, transmission and emission spectra of the WASP-19 planetary system from multi-colour photometry
Published paper   —   preprint (arXiv:1306.6384)   —   ADS (2013MNRAS.436....2M)

Southworth J., Mancini L., Browne P., et al., 2013, MNRAS, 434, 1300.
High-precision photometry by telescope defocussing. V. WASP-15 and WASP-16
original manuscript   —   preprint (arXiv:1306.3509)   —   ADS (2013MNRAS.434.1300S)

Harpsøe K. B. W., Hardis S., Hinse T. C., et al, 2013, A&A, 549, A10.
The transiting system GJ 1214: high-precision defocused transit observations and a search for evidence of transit timing variations
Published paper   —   preprint (arXiv:1207.3064)   —   ADS (2013A+A...549A..10H)

Southworth J., Hinse T. C., Dominik M., et al., 2012, MNRAS, 426, 1338.
High-precision photometry by telescope defocussing. IV. Confirmation of the huge radius of WASP-17
original manuscript   —   preprint (arXiv:1207.5797)   —   ADS (2012MNRAS.426.1338S)

Southworth J., Dominik M., Jørgensen U. G., et al., 2011, A&A, 527, A8.
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Southworth J., Mancini L., Calchi Novati S., et al., 2010, MNRAS, 408, 1680.
High-precision photometry by telescope defocussing. III. The transiting planetary system WASP-2
original manuscript   —   preprint (arXiv:1006.4464)   —   ADS (2010MNRAS.408.1680S)

Southworth J., Hinse T. C., Dominik M., et al., 2009, ApJ, 707, 167.
Physical properties of the 0.94-day period transiting planetary system WASP-18
original manuscript   —   preprint (arXiv:0910.4875)   —   ADS (2009ApJ...707..167S)

Southworth J., Hinse T. C., Burgdorf M., et al., 2009, MNRAS, 399, 287.
High-precision photometry by telescope defocussing. II. The transiting planetary system WASP-4
original manuscript   —   preprint (arXiv:0907.3356)   —   ADS (2009MNRAS.399..287S)

Southworth J., Hinse T. C., Jørgensen U. G., et al., 2009, MNRAS, 396, 1023.
High-precision photometry by telescope defocussing. I. The transiting planetary system WASP-5
original manuscript   —   preprint (arXiv:0903.2139)   —   ADS (2009MNRAS.396.1023S)

See also:

Southworth J., 2012, MNRAS, 426, 1291.
Homogeneous studies of transiting extrasolar planets. V. New results for 38 planets
original manuscript   —   preprint (arXiv:1207.5796)   —   ADS (2012MNRAS.426.1291S)

Southworth J., 2011, MNRAS, 417, 2166.
Homogeneous studies of transiting extrasolar planets. IV. Thirty systems with space-based light curves
original manuscript   —   preprint (arXiv:1107.1235)   —   ADS (2011MNRAS.417.2166S)

Southworth J., 2010, MNRAS, 408, 1689.
Homogeneous studies of transiting extrasolar planets. III. Additional planets and stellar models
original manuscript   —   preprint (arXiv:1006.4443)   —   ADS (2010MNRAS.408.1689S)

Southworth J., 2009, MNRAS, 394, 272.
Homogeneous studies of transiting extrasolar planets. II. Physical properties
original manuscript   —   preprint (arXiv:0811.3277)   —   ADS (2009MNRAS.394..272S)

Southworth J., 2008, MNRAS, 386, 1644.
Homogeneous studies of transiting extrasolar planets. I. Light curve analyses
original manuscript   —   preprint (arXiv:0802.3764)   —   ADS (2008MNRAS.386.1644S)

Southworth J., Wheatley P. J., Sams G., 2007, MNRAS, 379, L11.
A method for the direct determination of the surface gravity of transiting extrasolar planets
original manuscript   —   preprint (arXiv:0704.1570)   —   ADS (2007MNRAS.379L..11S)